[Bug 111790] i915 0000:00:02.0: GPU HANG: ecode 7:0:0x00000000, hang on rcs0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111790

--- Comment #6 from Alexander <alexander.r.gruber at gmail.com> ---
I am experiencing similar problems to Mihai above.
My system (Arch Linux with Windows 10 guest, using IOMMU GPU passthrough) has
been working for over a year, but started freezing on the Host side a few days
ago (after updates).

dmesg: 
[  812.306423] i915 0000:00:02.0: GPU HANG: ecode 7:0:0x00000000, hang on rcs0
[  812.306424] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  812.306436] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  812.306436] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  812.306436] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  812.306436] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  812.306639] i915 0000:00:02.0: Resetting chip for hang on rcs0

Last line: "Resetting chip for hang on rcs0" is repeated a lot, which comes
with symptoms of system hangs for ~3s every 10-15s. Especially when the QEMU
Guest is running and the host system is in use (mouse movement).
Also, internet functionality is impaired - recovers itself after a few seconds
of wait usually.

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